First it is relatively easy to get to unlike many other destinations that have pristine reefs. Second it is a combination land/liveaboard destination depending on what you like. The land destination has the best camera room ever, a huge helpful staff and everything else is first rate while the liveaboard is also top of the line. Finally, the connection point is Bali, about the coolist surface destination ever and it also has lots of interesting dive opportunities for large critters.

So at the young age of 70 (with no more than 30 years left to dive), I go there every year. The simplist, and least expensive, connection from the US is EVA Air through Taiwain. (From Australia my guess you go through Singapore)